LITHIUM-ION BATTERY FOR CORDLESS TOOLS: The IONMAX lithium-ion battery is part of the battery-management system for Snow Joe, Auto Joe, Power Joe, and Sun Joe products. Charger not included. ECOSHARP POWER MANAGEMENT: This replacement battery features high-capacity 1.5Ah lithium-ion cells that deliver no-fade power for optimal performance. CONVENIENT & RECHARGEABLE DESIGN: Each of these lithium batteries provides reliable, gas-free, cordless convenience in a single rechargeable pack. The maximum charging time is 60 minutes, though run times vary depending on the tool. LASTING RESULTS: Our rechargeable backup battery is not burdened by memory effect and can be used without fully draining or waiting for a complete charge. It comes with fuel-gauge indicator lights to monitor charge capacity and retains up to 65% of its charge after 6 months. GO WITH JOE: Joe brands offer a wide range of innovative, high-quality tools for the home, yard, garden, and garage. We are dedicated to providing the right tool for every household, making it easy to Go with Joe to get the job done.